Stacey Dooley Sleeps Over

Stacey Dooley watches clips from previous episodes and reflects on whether her status as a new mother has changed her perspective on the parenting methods she witnessed first-hand.

Stacey visits Thomas and Cathy, who have an open marriage and live a polyamorous life, sharing their home with Nicole, who is a part of their relationship.

Stacey spends a weekend with the Saccone Jolys, one of Britain's most popular YouTube families. They have four kids who have been in videos since they were born.

In Brighton, Stacey stays with Matt and Adele and their three children, 8 year old Ulysses, 4 year old Ostara and baby Kai. Adopting childled parenting, Matt and Adele believe that kids don't need rules – just freedom to choose how they live and learn. They co-sleep with their parents, do not attend mainstream school, decide what they eat and when they eat, have no fixed bedtime and the parents are against mainstream medication.

Felipe and Lillian have created a home life that follows the extremely traditional lifestyle or 'tradlife'. Putting her career ambitions to one side, Lillian has become part of a growing movement of 'tradwives' - meaning she prefers to take a submissive role in her marriage to husband Felipe. As head of the household, Felipe is responsible for providing all the family income; while Lillian's role is to be a 1950s-style housewife, cooking, cleaning, ironing, home-educating their two young children and deferring to "the boss" in all decisions.

Professional model Keisha and Nigerian millionaire Kunle have two children together. Their youngest, Dior, is the epitome of a star of the future; forthright, articulate and bubbly. This young girl is following in her mother's footsteps and is already well on the way to becoming a successful model - a career path she first embarked on when she was still only three years old.

Environmental campaigner and aristocrat Roc purchased the remote Hebridean island of Gometra 25 years ago and moved into a derelict house with his four children. Gometra has been his main residence ever since and he spends the majority of his time living there. Roc and his children, Blue, Savannah and Lazer, are staunch environmentalists and regularly make a 17-hour journey to London (involving an eight-mile walk, two ferries, two buses and three trains) to help lead the controversial Extinction Rebellion and HS2 campaigns.

We spend the weekend with 23-year-old Lily Phillips, a high-profile adult content creator who has sparked both fascination and outrage in equal measure.

We meet Barrie Drewitt-Barlow, Britain's first legally recognised gay father, entrepreneur and outspoken supporter of commercial surrogacy - which is banned in the UK.

We meet single mum-of-eight Marie Buchan, a lightning rod in the fierce debate over the UK benefits system who has openly shared her state-funded lifestyle.