Respuesta :
true with out sleep you would not be able to re gain energy you need to stay awake and alert
The statement that sleep is an universal biological need is true. Each organism on Earth has this need. The average adult needs about seven to eight hours of sleep per 24-hour day. The sleep cycle has five stages: stages 1-4 and the REM (rapid eye motion) sleep stage. Stages 1-4 are also known as NREM or non-REM sleep.