diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9693d008d..e9deac66c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 ### Added
+- Added `pyg::utils::to_vector` implementation ([#88](https://github.com/pyg-team/pyg-lib/pull/88))
 - Added support for PyTorch 1.12 ([#57](https://github.com/pyg-team/pyg-lib/pull/57), [#58](https://github.com/pyg-team/pyg-lib/pull/58))
 - Added `grouped_matmul` and `segment_matmul` CUDA implementations via `cutlass` ([#51](https://github.com/pyg-team/pyg-lib/pull/51), [#56](https://github.com/pyg-team/pyg-lib/pull/56), [#61](https://github.com/pyg-team/pyg-lib/pull/61), [#64](https://github.com/pyg-team/pyg-lib/pull/64), [#69](https://github.com/pyg-team/pyg-lib/pull/69))
 - Added `pyg::sampler::neighbor_sample` implementation ([#54](https://github.com/pyg-team/pyg-lib/pull/54), [#76](https://github.com/pyg-team/pyg-lib/pull/76), [#77](https://github.com/pyg-team/pyg-lib/pull/77), [#78](https://github.com/pyg-team/pyg-lib/pull/78), [#80](https://github.com/pyg-team/pyg-lib/pull/80), [#81](https://github.com/pyg-team/pyg-lib/pull/81)), [#85](https://github.com/pyg-team/pyg-lib/pull/85), [#86](https://github.com/pyg-team/pyg-lib/pull/86), [#87](https://github.com/pyg-team/pyg-lib/pull/87))
diff --git a/pyg_lib/csrc/sampler/cpu/neighbor_kernel.cpp b/pyg_lib/csrc/sampler/cpu/neighbor_kernel.cpp
index 1c395d3b9..23cacab72 100644
--- a/pyg_lib/csrc/sampler/cpu/neighbor_kernel.cpp
+++ b/pyg_lib/csrc/sampler/cpu/neighbor_kernel.cpp
@@ -214,11 +214,11 @@ sample(const at::Tensor& rowptr,
     std::vector<node_t> sampled_nodes;
 
     const auto seed_data = seed.data_ptr<scalar_t>();
-    for (size_t i = 0; i < seed.numel(); i++) {
-      if constexpr (!disjoint) {
-        mapper.insert(seed_data[i]);
-        sampled_nodes.push_back(seed_data[i]);
-      } else {
+    if constexpr (!disjoint) {
+      sampled_nodes = pyg::utils::to_vector<scalar_t>(seed);
+      mapper.fill(seed);
+    } else {
+      for (size_t i = 0; i < seed.numel(); i++) {
         mapper.insert({i, seed_data[i]});
         sampled_nodes.push_back({i, seed_data[i]});
       }
diff --git a/pyg_lib/csrc/utils/cpu/convert.h b/pyg_lib/csrc/utils/cpu/convert.h
index 8edaa862d..6b65fc7ad 100644
--- a/pyg_lib/csrc/utils/cpu/convert.h
+++ b/pyg_lib/csrc/utils/cpu/convert.h
@@ -23,5 +23,12 @@ at::Tensor from_vector(const std::vector<std::pair<scalar_t, scalar_t>>& vec,
   return inplace ? out : out.clone();
 }
 
+template <typename scalar_t>
+std::vector<scalar_t> to_vector(const at::Tensor& vec) {
+  TORCH_CHECK(vec.is_contiguous(), "'vec' needs to be contiguous");
+  const auto vec_data = vec.data_ptr<scalar_t>();
+  return std::vector<scalar_t>(vec_data, vec_data + vec.numel());
+}
+
 }  // namespace utils
 }  // namespace pyg