Just curious - at what age do they really start to enjoy activity mats? We got one as a gift but it will be at MIL's house until they can bring it to us, sometime around when LO is 7 weeks old. I thought that was okay since he won't be too interactive before that age, but now I'm second guessing myself.
Re: When did your LO start using an activity mat?
I put my DS on his and he kind of stares at the dangling toys. I think you're fine.
We use it once a day right now. She loves looking at herself in the mirror and can already swing her arms around and bat at the toys.
Here's a pic of her on her mat:
We have the Baby Einstein one with the star, too. DS *loved* that star--it was the first thing he smiled at. Sadly, it died a pitiful death the other day. No more star...
To the OP: DS really started enjoying the mat around 4 weeks, when he noticed the flashing, music-playing star. He's just now starting to bat at the toys, though I think it may still be accidental.