A 55-year-old man typically needs about 7 to 9 hours of sleep per night, according to the National Sleep Foundation. Individual sleep needs can vary based on factors like health, lifestyle, and stress levels. Prioritizing quality sleep is important for overall well-being and cognitive function as one ages.
about 8 to 10 hours of sleep
8 hours,,,...
12 hours
I'm quite sure they need at least 7 hours.
Children need 8 hours.
9 - 10 hours
8 - 10 hours.
Depends on the length of your "sleep cycles", but generally 7-9 hours.
if you mean how many hours you should sleep in a year it would be 3,650 hours of sleep for a regular year not a leap year
10-11 hours every night are the optimum hours of sleep an eight-year-old should get.
37
About 10-12 hours