Hi Erica~
Wow!!!
Your routine looks fantastic!!! Really, it truely looks like you're doing great! But I can definately see now why it's so difficult for you to get out of the house!!!
I honestly think if this routine is working for you, then I'd keep it up. The only reason why I made changes to our lo's feeding times or A times is if his naps started getting shorter on a consistant basis. I'd just keep an eye on your afternoon nap at 1:30-3:00 that you said is getting shorter for the last week or so, and maybe if the other naps start to shorten, you could transition slowly to 2 naps + catnap a day. So it would look something like this:
E 6am
A until 8:00-8:15 (you'd have to transition to this very slowly. Start with adding 5-10 minutes extra "A" time for 3-4 days and see how your lo adapts. If naps shorten to 30 minutes, you know he's not ready for extra "A" time, since 30 minute naps usually mean that lo's are OT. 45 minute naps mean your lo is not tired enough. If your lo still sleeps a good 1.5-2 hour nap, you know you're ok.)
S 8:00-10:00
E 10:00 (if your lo wakes up a little earlier than 10:00, try to keep activity light, and delay feeding a tiny bit at a time if possible. But of course, always feed if your lo is hungry!)
A until 12:00-ish (same as before, transition slowly!)
S 12:00-2:00
E 2:00
A until 4:00-ish
S catnap could be 30-45 minutes, ending no later than 5:00
E 5:00 you could keep this cluster feed the same as your current routine, if you find your lo needs it.
A bath, wind down routine, maybe feed one more time, etc until 6:00 ish
S 6:30-7:00
This is just an idea, of course you wouldn't have to follow it exactly. Just follow your lo, and see how he makes out. But wait until you see a problem with your routine, such as shorter naps 1st, then try to implement changes. Your routine right now seems great!!!
I read another book called 90 minute naps recently ( I forget the author's name) But the author is a sleep researcher, and what they found was that if babies are taking nice long naps in the day of 1.5-2 hours, they will usually start to be able to have longer "A" times starting in the late afternoon 1st. (So for example, using your routine, maybe your lo is finding it hard to go to bed at 7:00 since he's able to have a longer "A" time as his last "A" time of the day, iykwim?) This is just a thought on why maybe your lo doesn't want to sleep until 8:00. If he's waking at 5:30, then not going to sleep until 8:00 or 8:30, that's a 2.5-3 hour "A" time right? So maybe as you transition your day, try to slowly wean the catnap (make it 5-10 minutes shorter for 4-5 days at a time until you're completely rid of it) and then your lo will be able to go to bed earlier? So for example, once you are rid of the catnap, if you lo still wakes at 3:00, then potentially he'd be ready for bed at 6:00 (3 hours A time). Just an idea, what do you think???
Anyway, hope this helps, looks like you're really doing a great great job though!!!
Take care,
Andrea