ATTENTION PARENTS: BIG W is having a mega toy sale. Here's everything you need to know.

Most parents of school-aged kids have worked out that some great things happen in the lead up to school holidays.

The release of excellent family-friendly movies, and great holiday deals, are some. And toy sales are another – which are a saviour, as they help keep the kids entertained.

This week, BIG W launched it’s June toy sale – and it’s a big one. So big, in fact, it’s being called the TOY MANIA sale: and it’s on right now.

Last night, BIG W celebrated the sale with a midnight openings in 35 stores. Huge crowds flocked to BIG W stores around the country, their bargain-hunting radars and trolleys at the ready.

Shoppers were able to access more than 450 toys under $20, including huge discounts on some of the most popular toys such as LOL Pets ($10), Hot Wheels 50th Anniversary Vehicle ($12), Jurassic World Sound Dinosaurs ($18), Pomsies Pom Pom Pets ($20), Fingerlings ($12), the New Barbie Dream House at $199 (down from $249).

Earlier yesterday, at a more child-friendly hour, the ‘Norris Nuts’ (Aussie surfer Sabre Norris and her siblings Sockie, Biggy and Naz) attended the Rouse Hill store for the launch, and set the world record for the largest number of people in one place dancing The Floss.

BIG W also released a list of its most popular toys – and the discounts you can get on them:

• Fingerlings $12: down from $20
• Barbie Cruise Ship $129: down from $149
• Disney Moana Hei Hei Plush with Sound $29: down from $39
• LEGO Creator Pirate Roller Coaster $75: down from $109
• Jurassic World Roarivores with Sound $18: down from $6
• Crate Creatures $34.50: down from $34.50
• PJ Masks Transforming Spinning Playset $19: down from $24 (sold separately)

Gaming and entertainment is also set expected to be popular this year with offers including Xbox One S console bundle for $299, and Nintendo Switch Console for $399.

BIG W says it expects the Toy Mania sale to be its biggest one ever.

“Savvy Aussie families know they can get their favourite brands at incredible prices at Toy Mania this year and every year,” said Teresa Rendo, General Manager, Commercial for BIG W. “It’s also a fantastic opportunity for families to start planning and budgeting for Christmas with our buy now or extended lay-by offer.”

The Toy Mania sale ends on the 11th of July, but we suggest you get in quickly to secure your kids’ favourite items at bargain prices.

Check www.big.com.au for the toy catalogue, and local store opening times.