Sea to Summit Silk Blend Sleeping Bag Liner | Thermolite Pro and silk blend liner adds warmth and a touch of luxury to any sleeping bag with infrared-absorbing fibers
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Great price
$54.97 is 43% below the $97.92 it normally sells for, and the lowest we've seen in 141 days.
- Now
- $54.97
- Normally
- $97.92
- Lowest in 141 days
- $54.97(Nov 13)
- Highest
- $99.95
Where today's price sits
Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.
Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)
Price history
Tracked since Jun 25 · 141 days · 35 price changes
Ahead of Black Friday 2026 (Nov 27), it is already 43% below its normal price of $97.92. Sea to Summit Silk Blend Sleeping Bag Liner price history, checked Nov 14, 2026: current price $54.97, normal (typical) price $97.92, average $97.30 over 141 days, lowest $54.97 (Nov 13, 2026), highest $99.95 (Nov 11, 2026).
Loading the price chart.
- Price
- Not checked for 3+ days
- Normal $97.92
- 5% or more below normal
How often does it drop below normal?
In the 141 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more twice, typically lasting about 4 days. It's below normal right now.
A count of what happened, not a prediction.
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Get this as JSONThe same verdict and prices, from the TrackPin API.
curl https://trackpin.co/api/v1/product/B0CT3V4GD6 \
-H "x-api-key: $TRACKPIN_API_KEY"const res = await fetch("https://trackpin.co/api/v1/product/B0CT3V4GD6", {
headers: { "x-api-key": process.env.TRACKPIN_API_KEY },
});
const product = await res.json();
console.log(product.verdict.label, product.price.reference_cents);import os, requests
r = requests.get(
"https://trackpin.co/api/v1/product/B0CT3V4GD6",
headers={"x-api-key": os.environ["TRACKPIN_API_KEY"]},
)
product = r.json()
print(product["verdict"]["label"], product["price"]["reference_cents"])This is exactly what the API returns for this product. Free keys include 100 requests a day.
Request a key{
"asin": "B0CT3V4GD6",
"title": "Sea to Summit Silk Blend Sleeping Bag Liner | Thermolite Pro and silk blend liner adds warmth and a touch of luxury to any sleeping bag with infrared-absorbing fibers",
"image": "https://m.media-amazon.com/images/I/510C7xo1ErL._AC_SL500_.jpg",
"currency": "USD",
"category": "Sports",
"category_label": "Sports",
"in_stock": true,
"price": {
"current_cents": 5497,
"reference_cents": 9792,
"discount_pct": 43.86,
"is_deal": true,
"observed_at": 1794614790538,
"changed_at": 1794556874068,
"checked_at": 1794614790538,
"source": "stored"
},
"verdict": {
"label": "great",
"text": "Great price",
"pct_vs_normal": 43.86,
"evidence": "strong",
"stale": false,
"suspect": false,
"steady_since": null,
"sentence": "Great price. $54.97 is 43% below the $97.92 it normally sells for, and the lowest we've seen in 141 days."
},
"listing_claim": null,
"stats": {
"min_cents": 5497,
"max_cents": 9995,
"avg_cents": 9730,
"history_days": 141,
"price_levels": 186,
"price_changes": 35,
"distinct_prices": 8,
"lowest_at": 1794556874068
},
"history": [
{
"price_cents": 9792,
"from": 1794437330745,
"to": 1794437330745
},
{
"price_cents": 9995,
"from": 1794438655817,
"to": 1794476948005
},
{
"price_cents": 9877,
"from": 1794481235875,
"to": 1794481235875
},
{
"price_cents": 9976,
"from": 1794481759606,
"to": 1794554673258
},
{
"price_cents": 5497,
"from": 1794556874068,
"to": 1794614790538
}
],
"last_seen": 1794614790538
}
// … 181 more steps in the full responseNormal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.