Expectant Duchess of Cambridge Kate Middleton recently moved into Nottingham Cottage, a quaint two-bedroom house on the grounds of London's Kensington Palace.
She left for her parents' house Friday, however, because it's just too hot.
The Middletons live in the village of Bucklebury, an hour or so outside of London ... and the cottage has no A/C. When you're nine months pregnant, not a small factor!
"It was just too warm in Nott Cott," an insider said, and with no signs of imminent labor, "She decided to spend the weekend with mum and dad."
"It's much more comfortable there."
Temperatures in London reached more than 86 degrees this weekend.
While Kate Middleton spent time with her parents, Prince William and Prince Harry headed to the Cirencester Polo Club charity game on Sunday.
"William is relaxed," an aide told the mag, noting that as always, he's ready, and "Should Kate go in to labor he will go straight to London with a police escort."
If not, the prince planned to stay with Kate in Bucklebury with the Middletons, as Royal Baby Watch 2013 continues to grip the UK and the entire world.
Now that Kate's royal baby due date of July 13 has come and gone, the odds are quite strong that the royal baby will be born today or tomorrow.
Doctors may even decide to induce Kate at some point, though it's unclear if that option has even been discussed, let alone planned at this time.
Either way, we can't wait!