It takes two good nights of sleep to repair your muscles more effectively
Most muscle repair occurs while you are asleep. This happens through something called deep orthodox sleep. Deep orthodox sleep last for 20 minutes on average and happens at most 4 or 5 times a night, but on average 3 times. You need 5 cycles to give the maximum muscle repair. A good night’s sleep is when you reach that 5 cycles, but for most that means two good night’s of sleep for fully repaired muscles.