How to express your thanks in numerous different languages, and how to reply when someone thanks you.
Report Abuse. Namaste Ramesh. Lions sleep 20 hours every day. Male lions sleep up to 20 hours per day (with one eye open so to speak.) While the females are the hunters the male lions don't and their job is to protect the pride (their harem so to speak).
In general, the average healthy adult needs 7 to 9 hours of sleep per night. Experiments have demonstrated that the average amount of sleep needed to avoid detrimental effects on daytime function is about 8 hours and 10 minutes. It is recommended that adults beyond age 65 may need less sleep, averaging 7 to 8 hours instead. If excess time is spent in bed, insomnia will result.