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Table 1 Sleep in 12-h light and dark periods under baseline conditions in cry1,2+/+ and cry1,2-/- mice.

From: A role for cryptochromesin sleep regulation

NREMS amount [%]
  light dark Difference
cry1,2 +/+ 48.8 ± 1.9# 31.3 ± 2.3 17.5 ± 3.9
cry1,2 -/- 49.5 ± 1.9 45.4 ± 1.9* 4.2 ± 1.6*
NREMS bout duration [min]
  light dark difference
cry1,2 +/+ 2.9 ± 0.2 2.9 ± 0.2 0.1 + 0.2
cry1,2 -/- 3.9 ± 0.2* 4.1 ± 0.4* -0.2 + 0.2
REMS amount [%]
  light dark Difference
cry1,2 +/+ 11.9 ± 1.1# 3.8 ± 1.0 8.2 ± 1.5
cry1,2 -/- 8.5 ± 0.5* 7.8 ± 0.7* 0.8 ± 0.8*
  1. Post-hoc comparisons: * P < 0.05 vs. wild type, unpaired t-tests; # P < 0.05 vs. dark period, within same genotype, paired t-tests. Differences represent the mean of individual light-dark differences.