Q: Can I do bodyweight exercises for two consecutive days or more or do muscles need a one day break? Is it harder to gain muscle if they dont get a day's rest?

A: Most bodyweight exercises are 'light' enough that you can do them daily while still benefitting from muscle growth and strength increases. One possible exception to this is pullups, which is relatively high intensity even if one is in good shape.

The general guidelines are to take at least a day's break between bouts of high intensity exercises for the same muscle group and also to not exceed the total of 10-15 sets of high-intensity to-failure exercises for the same muscle group in one week. 'High intensity' in this case is defined as 12 or fewer reps of an exercise before muscular failure. Of course if you only do 1 to-failure set per day, then it's most likely OK to repeat it daily.