Two in a bed: The influence of couple sleeping and chronotypes on relationship and sleep. An overview.
To summarize research on couple sleeping with respect to gender-specific differences and chronotype.



Systematic review of the literature.



Millions of adults around the world share their beds with a partner. This may be an expression of intimacy and attachment and tends to intensify romantic relationships. Yet, couple sleeping still has underestimated implications for the quality of the relationship, quality of sleep and for physical and psychological health which are not consistently positive. Implications for research and therapy are discussed.



Despite the people involved perhaps not even being aware of their nocturnal interactions, it is important that sleeping together becomes a subject of discussion.



REM: rapid eye movement; QOL: quality of life; OSA: obstructive sleep apnea; CPAP: continuous positive airway pressure.
a University Clinic for Psychiatry and Psychotherapy , Paracelsus Private Medical University , Clinic Nuremberg , Nuremberg , Germany.|b Faculty of Social Sciences , Georg Simon Ohm University of Applied Sciences Nuremberg , Nuremberg , Germany.|c Faculty of Medicine , Goce Delcev University , Štip , Macedonia.
Kneginja
K
Richter
a University Clinic for Psychiatry and Psychotherapy , Paracelsus Private Medical University , Clinic Nuremberg , Nuremberg , Germany.
Sophia
S
Adam
a University Clinic for Psychiatry and Psychotherapy , Paracelsus Private Medical University , Clinic Nuremberg , Nuremberg , Germany.
Lennard
L
Geiss
a University Clinic for Psychiatry and Psychotherapy , Paracelsus Private Medical University , Clinic Nuremberg , Nuremberg , Germany.
Lukas
L
Peter
a University Clinic for Psychiatry and Psychotherapy , Paracelsus Private Medical University , Clinic Nuremberg , Nuremberg , Germany.|b Faculty of Social Sciences , Georg Simon Ohm University of Applied Sciences Nuremberg , Nuremberg , Germany.
Guenter
G
Niklewski
D002940:Circadian Rhythm / Q000502:physiology*; D045422:Continuous Positive Airway Pressure; D006801:Humans; D011788:Quality of Life; D012890:Sleep / Q000502:physiology*; D020181:Sleep Apnea, Obstructive / Q000503:physiopathology
Chronotype; cohabitation; marriage; sleep; women’s health