La cama, solo para dormir: cómo ayudar al cuerpo a volver a dormirse
Te acuestas cansada y el sueño desaparece. Pasas una hora en la cama, miras el móvil, cuentas cuánto falta para el despertador. Cuanto más dura esto, más asocia el cerebro la cama no con dormir, sino con estar despierta y con la ansiedad. Este paso recupera la asociación correcta.
Por qué funciona
Es la base del enfoque conductual del sueño: según los estudios, es más eficaz que los somníferos y que una simple lista de normas de «higiene del sueño». La idea es sencilla: la cama tiene que volver a significar dormir. Cuando en ella solo duermes, el cerebro vuelve a aprender a dormirse en cuanto la cabeza toca la almohada.
Cómo hacerlo
- No te quedes en la cama sin dormir. Si no te duermes en más de 15–20 minutos, levántate, ve a otro sitio con luz tenue y haz algo tranquilo. Vuelve cuando empiece a entrarte el sueño.
- En la cama no trabajes ni mires el móvil. Carga el móvil lejos de la cama.
- No mires el reloj por la noche. Contar las horas que quedan solo añade ansiedad.
- Acuéstate cuando te entre el sueño y levántate a la misma hora. Acostarte pronto «por si acaso» a menudo significa pasar más tiempo despierta en la cama.
- Sin pantallas entre 30 y 60 minutos antes de dormir.
Quién debe tener más cuidado
Si tomas medicamentos para la tensión o tienes más de 70 años: por la noche no te levantes de golpe; siéntate primero un minuto en el borde de la cama. Luz del pasillo tenue, pero suficiente para no tropezar.
Si de día la somnolencia te dificulta conducir, no cojas el coche cansada.
Qué puede dificultarlo
- «El móvil es mi despertador». Un despertador normal, o el móvil donde tengas que levantarte para cogerlo.
- «Me cuesta levantarme por la noche». Los primeros días puede resultar raro. Lo importante es no pasar horas despierta en la cama.
- «En casa no tengo adónde ir». Un sillón en la misma habitación con una lámpara tenue también sirve.
Qué esperar
Fíjate en cuánto tiempo pasas despierta en la cama y cuántas veces te despiertas. Anota tu sueño en VIA-L para ver la diferencia semana a semana.
Cuándo ir al médico
Si el mal sueño dura más de tres meses pese a estos pasos, o si roncas con pausas, el sueño no te descansa o te quedas dormida de día, conviene ir al médico o a un especialista en sueño. Más en el artículo «Por qué empeora el sueño después de los 40».
En qué se basa
Este artículo se basa en temas de la base de conocimiento de VIA-L. Estos son los estudios publicados que hay detrás:
- Cognitive Behavioural Therapeutics for Insomnia Symptoms in the Perimenopause Through to the Early Postmenopausal Period — The Cochrane Database of Systematic Reviews, 2026 doi
- Insomnia and women: exploring vulnerability, impact, and intervention — Sleep & Breathing = Schlaf & Atmung, 2026 doi
- OSA in Women: Associations With Reproductive Aging and Screening Challenges — Chest, 2026 doi
- Pharmacological and Non-Pharmacological Treatments for Chronic Insomnia in Perimenopausal and Postmenopausal Women: A Systematic Review and Meta-Analysis — Sleep Medicine, 2026 doi
- Reframing menopause and menopause hormone therapy as opportunities for healthy aging — Science, 2026 doi
- Cognitive-Behavioral, Acceptance-Based, and Mindfulness-Based Interventions for Psychological and Sleep-Related Symptoms During Menopause: A Systematic Review — Acta Psychologica, 2026 doi
- Integrative Approaches to Perimenopause — The American Journal of Medicine, 2026 doi
- Effectiveness of Non-Pharmacological Interventions for Insomnia Related to Natural Menopause: A Meta-Analysis of Randomized Controlled Trials — Maturitas, 2026 doi
- Nutritional Modulators of Sleep: A Narrative Review of Vitamins, Minerals, Amino Acids, and Their Neurobiological and Chronoepigenetic Mechanisms — Chronobiology International, 2026 doi
- A Digital Mindfulness Intervention Improves Sleep Efficiency and Heart Rate Variability in Healthy Adults — Scientific Reports, 2026 doi
- Hormonal Modulation With Withania Somnifera: Systematic Review and Meta-Analysis of Randomized-Controlled Trials — Planta Medica, 2026 doi
- Elinzanetant for the Treatment of Vasomotor Symptoms Associated With Menopause: A Phase 3 Randomized Clinical Trial — JAMA Internal Medicine, 2025 doi
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- Fezolinetant and Elinzanetant Therapy for Menopausal Women Experiencing Vasomotor Symptoms: A Systematic Review and Meta-Analysis — Obstetrics and Gynecology, 2025 doi
- Menopause and Movement: Exercise for Better Sleep and Psychological Well-Being-a Systematic Review — Menopause (New York, N.Y.), 2025 doi
- Omega-3 Fatty Acids and Sleep: Recent Advances in Understanding Effects and Mechanisms — Current Opinion in Clinical Nutrition and Metabolic Care, 2025 doi
- Infertility Evaluation and Treatment — The New England Journal of Medicine, 2025 doi
- Effect of a Novel Nutraceutical Combination of EstroG-100 and Γ-Aminobutyric Acid (GABA) in Attenuating Symptoms of Menopause in Healthy Adult Women: A Randomized Double-Blinded Placebo-Controlled Study — Menopause (New York, N.Y.), 2025 doi
- Adrenal Insufficiency in Adults — JAMA, 2025 doi
- An Integrative Approach to HPA Axis Dysfunction: From Recognition to Recovery — The American Journal of Medicine, 2025 doi
- The Combination of Physical Exercise and Slow-Paced Breathing on Psychophysiological Indices of Emotion Reactivity, Psychosocial Stress Reactivity and Recovery: A Multimodal Investigation — Behaviour Research and Therapy, 2025 doi
- Role of Circadian Health in Cardiometabolic Health and Disease Risk: A Scientific Statement From the American Heart Association — Circulation, 2025 doi
- Effectiveness of 2 Just-in-Time Adaptive Interventions for Reducing Stress and Stabilizing Cardiac Autonomic Function: Microrandomized Trials — Journal of Medical Internet Research, 2025 doi
- Chrononutrition Interventions for Mental Health: Addressing Atypical Depression, Ultra-Processed Food Use Disorder, and Circadian Dysregulation — Frontiers in Psychiatry, 2025 doi
- Components and Delivery Formats of Cognitive Behavioral Therapy for Chronic Insomnia in Adults — JAMA Psychiatry, 2024 doi
- Network Meta-Analysis Examining Efficacy of Components of Cognitive Behavioural Therapy for Insomnia — Clinical Psychology Review, 2024 doi
- Effects of Mind-Body Exercise on Perimenopausal and Postmenopausal Women: A Systematic Review and Meta-Analysis — Menopause (New York, N.Y.), 2024 doi
- Stimulus control for insomnia: A systematic review and meta-analysis — J Sleep Res, 2024 doi
- Social jetlag and obesity: A systematic review and meta-analysis — Obes Rev, 2024 doi
- Shoden Promotes Relief From Stress and Anxiety: A Randomized, Double-Blind, Placebo-Controlled Study on Healthy Subjects With High Stress Levels — Heliyon, 2024 doi
- Hypopituitarism — Lancet (London, England), 2024 doi
- European Society of Endocrinology and Endocrine Society Joint Clinical Guideline: Diagnosis and Therapy of Glucocorticoid-Induced Adrenal Insufficiency — The Journal of Clinical Endocrinology and Metabolism, 2024 doi
- Performance of Dehydroepiandrosterone Sulfate and Baseline Cortisol in Assessing Adrenal Insufficiency — The Journal of Clinical Endocrinology and Metabolism, 2024 doi
- GABA-ergic Modulators: New Therapeutic Approaches to Premenstrual Dysphoric Disorder — CNS Drugs, 2023 doi
- The Effect of Caffeine on Subsequent Sleep: A Systematic Review and Meta-Analysis — Sleep Medicine Reviews, 2023 doi
- Clinical and cost-effectiveness of nurse-delivered sleep restriction therapy for insomnia in primary care (HABIT): a pragmatic, superiority, open-label, randomised controlled trial — Lancet, 2023 doi
- Oral Micronized Progesterone for Perimenopausal Night Sweats and Hot Flushes a Phase III Canada-Wide Randomized Placebo-Controlled 4 month Trial — Scientific Reports, 2023 doi
- Optimizing Sleep Across the Menopausal Transition — Climacteric : The Journal of the International Menopause Society, 2023 doi
- Relationship between daytime napping with the occurrence and development of diabetes: a systematic review and meta-analysis — BMJ Open, 2023 doi
- Effects of Sleep Fragmentation and Estradiol Decline on Cortisol in a Human Experimental Model of Menopause — The Journal of Clinical Endocrinology and Metabolism, 2023 doi
- Changes in Cortisol Awakening Responses (CAR) in Menopausal Women Through Short-Term Marine Healing Retreat Program With Specific Factors Affecting Each CAR Index — PloS One, 2023 doi
- Progesterone and Its Metabolites Play a Beneficial Role in Affect Regulation in the Female Brain — Pharmaceuticals (Basel, Switzerland), 2023 doi
- Ocimum Tenuiflorum Extract (HOLIXERTM): Possible Effects on Hypothalamic-Pituitary-Adrenal (HPA) Axis in Modulating Stress — PloS One, 2023 doi
- Systematic review and meta-analyses on the effects of afternoon napping on cognition — Sleep Med Rev, 2022 doi
- A Portrait of Obstructive Sleep Apnea Risk Factors in 27,210 Middle-Aged and Older Adults in the Canadian Longitudinal Study on Aging — Scientific Reports, 2022 doi
- Disruption of Sleep Continuity During the Perimenopause: Associations With Female Reproductive Hormone Profiles — The Journal of Clinical Endocrinology and Metabolism, 2022 doi
- Relating Neurosteroid Modulation of Inhibitory Neurotransmission to Behaviour — Journal of Neuroendocrinology, 2022 doi
- Role of Inflammation, Oxidative Stress, and Mitochondrial Changes in Premenstrual Psychosomatic Behavioral Symptoms with Anti‐Inflammatory, Antioxidant Herbs, and Nutritional Supplements — Oxidative Medicine and Cellular Longevity, 2022 doi
- Human adaptative behavior to Antarctic conditions: A review of physiological aspects — WIREs Mechanisms of Disease, 2022 doi
- Modulation of the Hypothalamic-Pituitary-Adrenal (HPA) Axis by Plants and Phytonutrients: A Systematic Review of Human Trials — Nutritional Neuroscience, 2022 doi
- Effect of Long-term Supplementation With Marine Omega-3 Fatty Acids vs Placebo on Risk of Depression or Clinically Relevant Depressive Symptoms and on Change in Mood Scores: A Randomized Clinical Trial — JAMA, 2021 doi
- Omega-3 Fatty Acids for Depression in Adults — The Cochrane Database of Systematic Reviews, 2021 doi
- Omega-3 Long-Chain Polyunsaturated Fatty Acid and Sleep: A Systematic Review and Meta-Analysis of Randomized Controlled Trials and Longitudinal Studies — Nutrition Reviews, 2021 doi
- Sleep During Menopausal Transition: A 10-Year Follow-Up — Sleep, 2021 doi
- Effects of a Short Daytime Nap on the Cognitive Performance: A Systematic Review and Meta-Analysis — Int J Environ Res Public Health, 2021 doi
- Diagnosis and Treatment of Luteal Phase Deficiency: A Committee Opinion — Fertility and Sterility, 2021 doi
- Chrono-Nutrition: From Molecular and Neuronal Mechanisms to Human Epidemiology and Timed Feeding Patterns — Journal of Neurochemistry, 2021 doi
- The Allopregnanolone to Progesterone Ratio Across the Menstrual Cycle and in Menopause — Psychoneuroendocrinology, 2020 doi
- Hormone Therapy for Postmenopausal Women — The New England Journal of Medicine, 2020 doi
- The Effects of Dietary Nutrition on Sleep and Sleep Disorders — Mediators of Inflammation, 2020 doi
- Improving Diet for Psychiatric Patients : High Potential Benefits and Evidence for Safety — Journal of Affective Disorders, 2020 doi
- Chronotype and Social Jetlag: A (Self-) Critical Review — Biology (Basel), 2019 doi
- Allopregnanolone and Reproductive Psychiatry: An Overview — International Review of Psychiatry (Abingdon, England), 2019 doi
- Effect of Omega-3 Supplements on Vasomotor Symptoms in Menopausal Women: A Systematic Review and Meta-Analysis — European Journal of Obstetrics, Gynecology, and Reproductive Biology, 2018 doi
- Symptoms of menopause — global prevalence, physiology and implications — Endocrinology, 2018 doi
- Effects of Pharmacologic and Nonpharmacologic Interventions on Insomnia Symptoms and Self-Reported Sleep Quality in Women With Hot Flashes: A Pooled Analysis of Individual Participant Data From Four MsFLASH Trials — Sleep, 2018 doi
- Positive Psychological Well-Being and Cardiovascular Disease: JACC Health Promotion Series — Journal of the American College of Cardiology, 2018 doi
- A New Model for Adrenarche: Inhibition of 3β-Hydroxysteroid Dehydrogenase Type 2 by Intra-Adrenal Cortisol — Hormone Research in Paediatrics, 2018 doi
- Effects of Mind⁻Body Exercises (Tai Chi/Yoga) on Heart Rate Variability Parameters and Perceived Stress: A Systematic Review With Meta-Analysis of Randomized Controlled Trials — Journal of Clinical Medicine, 2018 doi
- Omega-3 Versus Isoflavones in the Control of Vasomotor Symptoms in Postmenopausal Women — Gynecological Endocrinology : The Official Journal of the International Society of Gynecological Endocrinology, 2017 doi
- Why Are Women So Vulnerable to Anxiety, Trauma-Related and Stress-Related Disorders? The Potential Role of Sex Hormones — Psychiatry, 2017 doi
- Understanding Adaptogenic Activity: Specificity of the Pharmacological Action of Adaptogens and Other Phytochemicals — Annals of the New York Academy of Sciences, 2017 doi
- Altered Diurnal Pattern of Steroid Hormones in Relation to Various Behaviors, External Factors and Pathologies: A Review — Physiology & Behavior, 2016 doi
- Duration of menopausal vasomotor symptoms over the menopause transition — JAMA Intern Med, 2015 doi
- Pooled Analysis of Six Pharmacologic and Nonpharmacologic Interventions for Vasomotor Symptoms — Obstetrics and Gynecology, 2015 doi
- Efficacy of Omega-3 for Vasomotor Symptoms Treatment: A Randomized Controlled Trial — Menopause (New York, N.Y.), 2014 doi
- Luteal Phase Deficiency in Regularly Menstruating Women: Prevalence and Overlap in Identification Based on Clinical and Biochemical Diagnostic Criteria — The Journal of Clinical Endocrinology and Metabolism, 2014 doi
- Protective role of melatonin in progesterone production by human luteal cells — Journal of Pineal Research, 2011 doi
- Cortisol Stimulates Secretion of Dehydroepiandrosterone in Human Adrenocortical Cells Through Inhibition of 3betaHSD2 — The Journal of Clinical Endocrinology and Metabolism, 2011 doi
- Acute Emotional Stress and Cardiac Arrhythmias — JAMA, 2007 doi
- Suppression of the Hypothalamic-Pituitary-Ovarian Axis in Normal Women by Glucocorticoids — Biology of Reproduction, 1993 doi
La solidez de esta evidencia varía: hay grandes revisiones y metaanálisis, y también estudios pequeños aislados. Los pasos del artículo son medidas sencillas de autocuidado de bajo riesgo, no un tratamiento, y pueden no servir para todos.
Esto es información general, no una prescripción.