Sliding Lid

Unlike ordinary mugs or cup warmers, Ember products integrate advanced heating technology directly into the mug, using precision sensors to regulate and maintain your preferred drinking temperature. Its smart design detects liquid levels, preserves battery life with auto sleep mode, and circulates heat evenly for consistent warmth in every sip. With built-in memory and updatable software, it stays ready and intelligent over time. Ember helps you enjoy your hot drinks exactly the way you like them, from the first sip to the last.

Since 2014, Ember, founded by Clay Alexander, has focused on transforming everyday routines through temperature control innovation. What began with smart mugs now extends to baby bottles, and even a reusable shipping box for pharmaceuticals. Ember ensures you enjoy your beverages and experiences at the perfect temperature, every time.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

Shipping

At Healf, we prioritize safe and fast delivery for all our customers. Our carefully selected couriers are Royal Mail and DPD.

UK standard delivery

Enjoy free standard delivery on orders above £50, this option usually requires 2-3 working days. If your order is under £50, this delivery option is available for £3.99.

Next working day

For when you need our products urgently, we offer next working day shipping for £5.99. For orders placed before 12.00, we will ship it the same day to ensure you receive your order the next working day.

International

International deliveries can take 7 working days, and up to 4 weeks. The cost is £22.99 for orders below £50, £49.95 for orders above.

Returns

If for any reason you are not satisfied with your order, we provide free 365-day UK returns for all our customers. To initiate your return, simply contact us at team@healf.com, and we'll send you a return slip and help arrange a collection. The item you return must be sent in the same condition as received and inside the original packaging. Once received, we will notify you via email.

For international returns, we unfortunately do not cover the cost. However, we work with an array of carriers and can offer self-posting returns for customers shopping from outside the UK.

To add the Sliding Lid to Ember coffee mugs, simply press the Sliding Lid onto your temperature control mug until the silicone ring is no longer exposed.