As I mentioned, I only swim once a week but went to the gym 5x a week. It was only in the past I mixed both and like you said, it's not that good. Also you're right about sleeping, it is important. I sleep just fine when I swim or during the gym.

I also notice that I spend more energy when I do freestyle than breaststroke. So, I rarely do freestyle especially when I have to get things done. Otherwise, I would sleep the whole day after an hour freestyle session. Thanks for checking out anyway. Have a great weekend ahead.