@snezak 7 March 2021 more from that month

Phase 4; deep sleep: breathing slows down even more, body temperature drops even more, at this stage the eyes do not move, even the muscles are not active. Stages 3 and 4 together represent deep sleep. If people wake up in stage 4, they may be dizzy and confused for a moment. This phase accounts for 12-15% of your sleep. #Duhovnost