It is wrong to do push-ups before bed. Push-ups before bed can interfere with sleep and lead to sleep deprivation. Sleep deprivation is not good for human health.
While push-ups are an essential exercise, right before going to bed is not the best time to perform them. Push-ups make muscles and the entire body active. The brain is affected in the process as it is forced to stay active. Sleep requires a calm and relaxed mind. However, doing push-ups before bed may not cause sleep interruptions in everyone. If it interrupts your sleep, do them at a different time of the day.