Cats are usually most active around dawn and dusk while sleeping the rest of the day. This means that the majority of adult cats sleep between 16 and 20 hours per day. But what if your feline friend sleeps less than that? Meg H. writes:
Meg, it does sound like Mimi isn't sleeping enough, but it's difficult to know what might be going on with her. Our first suggestion in a case like this is to have her thoroughly checked by a good veterinarian - someone who will be your partner in figuring out what's going on with her even though there may not be much to go on. While it’s possible that she could be experiencing some sort of pain which is keeping her up, it isn’t the most likely scenario. Once she has a clean bill of health, you can move on to behavioral and environmental factors.
Most cats sleep more in the winter months than in the summer. They also like it when the household adheres to a clear and predictable schedule. The trick with Mimi may be to establish a regular schedule and then leave it to her to adjust once you've ruled out larger issues. Cats are highly adaptable and three months really isn't enough time for her to settle in completely. Just make sure you schedule some lap time for her in the evening while you watch TV or are on the computer.
You also want to spend 15-30 minutes each evening playing with her before bedtime. A cat's natural rhythm is to hunt, eat, and sleep. If you mimic that series of events before bedtime by playing vigorously and then feeding her just before bed, she should sleep better and longer. It will also be good to develop some signals for her to know where she is in the daily routine. Telling her, "time to play" or "time to sleep" will help her to know what to expect next. Cats generally love schedules and respond well to them.
The schedule is also where your husband's insomnia could be having an effect. Cats are curious creatures because their survival depends on it. If they hear a rustle, they'd better go explore it because it might be the only prey they find that day. When your husband gets up and moves about the house during the night, it's a safe bet that Mimi becomes curious and wants to know what he’s doing. Since this doesn't happen on a particular schedule, it could definitely make her uneasy and unwilling to sleep until she knows that he’s settled. Being active can be very distracting to her.
Overall, I don't think you need to worry too much about her not getting enough sleep. As she settles into your household and feels her ownership of her territory, she'll naturally relax more. We wish you and Mimi all the best!