Gain The Sleeper Helmet - Black
Gain The Sleeper Helmet Ampd Bros
Gain The Sleeper Helmet - Grey
Gain Adjustable Helmet - Pink
Gain The Sleeper Helmet - White
Gain The Sleeper Helmet - Pink
Gain The Sleeper Helmet Ampd Bros
Gain The Sleeper Helmet Ampd Bros back
Gain The Sleeper Fixed Back Helmet
Gain The Sleeper Helmet Ampd Bros Front
The Sleeper Helmet
Gain Bike Helmet
Gain Adjustable Helmet
Gain The Sleeper Adjustable Back Helmet
Gain Adjustable Helmet - Black
Gain Adjustable Helmet - Grey
Gain Adjustable Helmet - White

Gain The Sleeper Helmet

Regular price$69.95
  • In Stock Online, Ready to Ship
  • No Stock Available, Contact Us to Confirm
  • Free AU Delivery Over $100!*
  • Flat Rate $8 Shipping Under $100
  • Same Day Dispatch before 12pm
  • Extensive Australia Wide Warranty
  • Direct Aussie Tech Support Mon-Fri
  • Nationwide Sales & Service Support
  • Aussie Family Owned Brand Est. 2019
  • Own Now with Afterpay, Zip & Humm
  • Over 20,000+ Happy Ampd Customers


We are proud to introduce The Sleeper by GAIN - the high end sport helmet of the GAIN Protection range. The Sleeper helmets feature classic design, very comfortable foam liners, highly adjustable buckle and 11 air vents for optimal air flow.

CE / CPSC / AS/NZ Certified.

All GAIN Protection helmets come with an extra set of foam liners for perfect fit. Please note all Black L/XL/XXL Helmets are Limited Edition Branded Ampd Bros Models.


  • CE / CPSC / AS/NZ Certified
  • Available in 4 Unique Colours
  • XS/S/M - 48-56cm (Size Adjustable Disc)
  • L/XL55-59cm (Fixed Size)
  • L/XL/XXL - 57-63cm (Size Adjustable Disc)

Own it now with

Customer Reviews

Based on 8 reviews
Colin Giles
Excellent Service

It was great to see a company who can deliver on their promise’s. Order the helmet and arrived at my house within 2 days. Great work!

Phil Bay
Gain the sleeper helmet

I bought this helmet from Amped Brothers and its great! Good fit and very comfy👍

Neil Blair
Product quality

Excellent people to deal with , quality product and service

Julie Mackenzie

Gain The Sleeper Helmet

ashley pettit
Is nice!


100% Aussie

Family Owned Brand

Established in 2019, Ampd Brothers is a Family Owned & Operated Brand with over 60+ Retailers & Service Agents Nation Wide so you'll be sure to get the Support you need!

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Local Support

Need help? Speak with a local qualified tech, 5 days per week or visit one of our many local dealers Australia wide.

Premium Products

Developed meticulously in conjunction with our team of experts for over 5 years, our products are built to last. We don't do cheap, we do the best.


We know our products are tougher than anyone else's, so we back them confidently for up to 2 Years regardless of where you live!