Meghan Markle can check off one more item on her wedding to-do list: Multiple outlets report that the bride-to-be had her bachelorette party (or, in Brit-speak, her “hen do”) this weekend.

On the itinerary? Lots of rest and relaxation. Instead of a wild night on the town, she reportedly enjoyed a glamorous spa day with a group of close friends. The exact spa hasn’t been revealed, but some suspect it’s the Soho Farmhouse, an alleged favorite of Markle’s.

The guest list was equally as secretive, although London’s Times reports rumored names include fashion designer Misha Nonoo and Violet von Westenholz, who is thought to have introduced Markle and Prince Harry. Kate Middleton was apparently unable to attend, as the seven months pregnant duchess had a jam-packed schedule that saw her make several appearances last week.Still, this low-key bachelorette party is right out of Middleton’s playbook. Before her 2011 wedding to Prince William, it was said she enjoyed a small, private dinner with friends.

Markle and Middleton have good reason for keeping their bachelorette parties quiet: As royalty, and royalty-in-training, they can’t exactly risk public revelry lest it end up on the front page of the tabloids. Yet they also represent a growing trend of women opting for pampering over partying. Vogue, for one, is all about these calm celebrations: from a beach-chic luxury spa in Mexico to a wellness retreat in the mountains of Utah. After all, what better way to achieve a pre-wedding glow?