Some people find that exercise aids sleep whilst others find it hinders. When I first began training again, I found if I trained after 7pm, it put my sleep out by two hours. These days, it doesn't bother me and I will find if I miss a session, I don't sleep as well.

I would suggest increasing your incidental exercise and aiming (initially) for three 30 min sessions a week. Ease yourself into it. I know some people go hell for leather, but some people need to ease themselves into it. Make sure you give yourself plenty of recovery time.

Also, make the most of your weekends. First thing Sat morning - get out for some exercise. Sunday, same thing.

Absolutely increase your incidental exercise. Park further away, take the stairs, walk the long way, hand deliver a message instead of emailing it. Instead of vacuuming, sweep.

Can DH do some of the nightly things? Even if it's only every second night? That would free up some time to exercise...

But DC is right - if you really want this, you will find a way. I had a teacher who used to say, busy people always find time to do more.

HTH

MG