# Exped SIM Ultra 3.8 LW Self-Inflating Sleeping Mat

**URL:** https://aio.lv/en/product--exped-7640277842885--11463776
**Data updated:** 2026-07-21 04:05 (EEST)
**Category:** Inflatable Mattresses & Pads
**Manufacturer:** EXPED
**Manufacturer code:** 7640277842885
**EAN:** 7640277842885
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.99 €
**Prices and availability valid until:** 2026-08-21 23:59
**Price without VAT (21%):** 87.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--exped-7640277842885--11463776

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.07.2026 | free |
| Pickup points | 04.08.2026 | 1.79 EUR |
| Courier delivery to door | 04.08.2026 | 4.99 EUR |

## Summary description

The Exped SIM Ultra 3.8 LW is a lightweight and durable self-inflating sleeping mat designed for outdoor enthusiasts. Featuring a 3.8 cm thickness, it provides essential insulation and comfort for backpacking and camping. Its compact design ensures easy transport, while the high-quality materials offer long-lasting performance in various terrain conditions. An ideal choice for reliable sleep support during multi-day trekking adventures.

## Long description

The Exped SIM Ultra 3.8 LW is a high-performance self-inflating sleeping mat engineered for outdoor enthusiasts who prioritize a balance between weight, durability, and comfort. With a thickness of 3.8 cm, this mat provides a stable and insulated base for restful sleep during backpacking, trekking, and camping trips. Its construction utilizes premium materials that withstand the rigors of various terrains, ensuring reliable performance throughout multi-day adventures.
Advantages
This sleeping mat excels by offering a self-inflating mechanism that significantly reduces setup time at the campsite. The lightweight design makes it an excellent companion for long-distance hikers who need to minimize pack weight without sacrificing thermal protection. The durable outer fabric is resistant to abrasion, providing peace of mind when sleeping on uneven ground. Furthermore, the mat maintains its structural integrity over time, offering consistent support and insulation against cold surfaces.
Suitable for
Backpacking and long-distance trekking
General camping and outdoor excursions
Multi-day outdoor expeditions
Situations requiring a balance of low weight and insulation
This mat may not be the optimal choice for extreme mountaineering or high-altitude winter expeditions where significantly higher R-values are required for sub-zero temperatures. Additionally, individuals who prefer a thicker, plush sleeping surface for maximum cushioning may find the 3.8 cm profile less comfortable than thicker air-filled alternatives.
Key specifications
Thickness: 3.8 cm
Self-inflating design
Durable, abrasion-resistant materials
Lightweight construction for portability
Insulated core for thermal protection
To use the Exped SIM Ultra 3.8 LW, simply unroll the mat on a flat surface and open the valve. The internal foam will expand automatically, drawing air into the mat. Once the initial inflation is complete, you can add a few breaths of air to reach your desired firmness level before closing the valve securely. When packing up, open the valve and roll the mat tightly from the opposite end to expel the air, then secure it with the provided straps.
What to consider before purchase
Check the dimensions to ensure the length and width meet your personal comfort requirements.
Consider the expected temperature range of your trips to ensure the insulation level is sufficient.
Evaluate the weight of the mat against your total pack load goals.
To prolong the lifespan of your sleeping mat, store it in a cool, dry place with the valve open when not in use. Avoid exposing the mat to sharp objects or extreme heat sources, and always use a ground sheet if camping on abrasive surfaces.

## FAQ

### How much does the Exped SIM Ultra 3.8 LW Self-Inflating Sleeping Mat cost, and is it available for purchase?

The price is 105.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 30.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Exped SIM Ultra 3.8 LW Self-Inflating Sleeping Mat be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All EXPED products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized EXPED service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11463776/66724434_large.webp