The posed alongside fellow TOWIE stars Bobby Norris, Jessica Wright, Ferne McCann, Danielle Armstrong and sister Billie.
Sam shared a series of snaps showing her and the TOWIE babes dressed in fluffy, white robes and relaxing at different locations around the spa.
Sam tweeted: ‘My beauties for a lovely relaxing Sunday xxx.’
Pal Jessica Wright even snuck in a bottle of bubbly to share amongst her glamorous friends.
Sam wrote: ‘Jess has managed to smuggle a bottle of champagne into the spa, naughty, naughty.’
Sam Faiers' life in pictures!
The spa weekend came after rumours that Sam had reconciled with ex-fiance Joey Essex following her illness.
A source close to the former couple told The Sun: ‘Joey was devastated when he heard about Sam's condition and instantly wanted to be there for her.’
They continued: 'They may have had a messy break-up but that didn't stop Joey caring for Sam. She still had feelings for him too.’
Sam was only diagnosed with Crohn’s recently, but it has been revealed that she may have been suffering from symptoms for up to a year.
She became seriously ill following her stay in the Big Brother house and was hospitalised not long after her exit.
The star has lost over a stone and a half following her illness and she has been put on a special liquid-only diet to help treat her symptoms.