CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -Sleep cycles usually repeat every 90 to 110 minutes. Each cycle is made up of a sequence of different sleep phases. There are two main types of sleep: REM sleep.

Detailed explanation-2: -The first stage through REM takes about 90 minutes to complete, and adults typically need to complete at least four or five sleep cycles per night, or 6 to 9 total hours of sleep. Stage 1 of the sleep cycle is considered light sleep.

Detailed explanation-3: -Sleep cycles across the night are only approximately 90 minutes in length. There are lots of individual differences in cycle length and the variation may be from around 60 to 110 minutes.

Detailed explanation-4: -During sleep, we experience two alternating types or states of sleep over an 8-hour time period: NREM sleep and REM sleep. The cycle repeats itself every 90 minutes. NREM or Non-Rapid Eye Movement includes 4 stages of sleep.

Detailed explanation-5: -The 90-minute sleep cycle refers to the time it takes for our body to complete one cycle of sleep. Timing sleep with the 90-minute cycle can help reduce muscle soreness, promote muscle growth, and help mental rejuvenation.