Effects of a corticotropin-releasing hormone receptor type 1 (CRHR1) antagonist, DMP696, on recovery sleep after sleep deprivation (SD) in CRH-COE-Nes mice. Data points ±s.e.m. indicate 1 h averages in time spent in non-rapid eye movement (non-REM) sleep (nonREMS) and REM sleep (REMS) during 7 h after 6-h SD initiated at Zeitgeber time (ZT)0. Animals received either vehicle or DMP696 per os at ZT5, at 1 h before the end of SD. Open and filled symbols indicate sleep changes after vehicle and antagonist treatment, respectively. Shaded area indicates the dark period. Numbers in brackets represent the sample size. Two-way analysis of variance for treatment effect between each genotype; CRH-COEcon-Nes for REM sleep F(1, 132)=4.55, P<0.05; CRH-COEhet-Nes for non-REM sleep F(1, 120)=5.68, P<0.05, for REM sleep F(1, 120)=8.19, P<0.01; CRH-COEhom-Nes for non-REM sleep F(1, 132)=5.90, P<0.05, for REM sleep F(1, 132)=8.62, P<0.01. * denotes statistical significance in treatment (P<0.05).