Table 2.

Data of rhythmic and arrhythmic mole rats scored in 1-min epochs for parameters measured in the current study

	Animal ID
M3	M8	M9	weighted mean rhythmic	M1	M5	M6	weighted mean arrhythmic
Circadian chronotype	rhythmic	rhythmic	rhythmic		arrhythmic	arrhythmic	arrhythmic
Body mass, g	389	254	350	331	208	220	310	246
Brain mass, g	2.2	2.2	2.4	2.3	2.2	2.2	2.2	2.2
Sex	male	male	male		male	male	male
TWT, % 24 h	66	71	77	72	72	81	78	80
TST, % 24 h	30	28	21	26	18	22	15	18
TNREM, % 24 h	25	22	17	21	14	17	12	14
TREM, % 24 h	5	6	4	5	4	5	3	4
Light period, % 12 h
TWT	66	80	78	75	85	75	87	82
TST	29	20	19	23	12	24	13	16
TNREM	24	16	15	19	8	19	11	13
TREM	4	4	4	4	4	5	3	4
Dark period, % 12 h
TWT	67	63	76	68	77	80	82	80
TST	31	35	24	30	23	19	17	20
TNREM	25	28	19	24	19	14	13	15
TREM	6	8	5	6	4	5	4	5

TWT = Total waking time; TNREM = total slow wave sleep/NREM sleep; TREM = total REM.