hi lisalisa, it is only been since January. I agree with others to find a nursery or cm for him in the meantime, if possible. Otherwise it is only one more month.
Perhaps your new nanny/aupair can start asap, even before your MIL leaves.
What a sweet ds you have. Treasure him. I have to say that neither dd nor ds would have tolerated any of this lying down in bed business for even a second and would become very 'vocal'.