Table 2. Sleep architecture during clinical PSG at time of diagnosis.

Subject	Sleep time (min)	Sleep efficiency (%)	%N1	%N2	%N3	%REM
1	346.5	91.8	15.3	54.7	26.6	3.5
2	115.9	97.0	19.8	61.7	2.5	16.0
3	436.8	96.4	8.7	43.6	24.2	23.5
4	360.0	91.4	30.6	51.7	0.0	17.8
5	79.5	49.3	99.4	0.6	0.0	0.0
6	61.0	29.7	72.1	27.9	0.0	0.0
7	308.8	90.8	26.2	56.0	0.0	17.7
8	590.5	95.2	11.6	51.1	10.2	27.0
AVERAGE	287.4	80.2	32.9	35.7	7.9	13.2
STD ERR	66.5	9.1	12.2	8.3	4.0	3.8