I have a very active 6 weeks old daughter that can roll over since week 1 and every diaper change feels like a wrestling match. I can always count on finding her on the other side of the crib every time she wakes from her sleep. I love watching her smile in amusement while doing her bicycle kicks and double leg press to the piano, we have been entertained for 20-30 minutes to the music while she coos, grins and smiles. The mat has been wonderful for tummy time, she likes the mirror, doing the cobra and even creeping around on the mat. This has been one of the best purchase I have made for the price! I would recommend it to mothers with an active baby!